A Grid Generation Strategy for Accurate Heat Flux Prediction in High-Speed Flow

Key Points

• The aim is to propose and validate a grid generation methodology for accurate prediction of surface heat flux in high-speed flows.
• Analyzed grid configuration effects on heat flux prediction accuracy by dividing grids into shock wave and boundary layer regions.
• Applied local grid refinement in shock wave regions to enhance stagnation point heat flux accuracy.
• Varied grid Reynolds number and surface grid aspect ratio to evaluate convergence characteristics and prediction errors in the boundary layer.
• Confirmed improved prediction accuracy of stagnation point heat flux with local grid refinement.
• Identified a correlation between grid Reynolds number and surface heat flux convergence below a specific threshold.
• Established suitable ranges for surface grid aspect ratios corresponding to complex flow conditions.